The first two wave types, P and S, are called body waves because they travel or propagate through the body of Earth. The latter two are called surface waves they the travel along Earth's surface and their amplitude decreases with depth into Earth.
Toysmith Spring Ring Game. Here is a super fun game the kids might like. Nordstrom has this Toysmith Spring Ring Game for $14.98! That is down from the normal price of $24.99, for a 40% savings.
Typical costs: 1  For an engagement ring, on the low end, expect to pay $125 to $500 for a quarter carat, or smaller, solitaire diamond set in 14-karat gold, or for diamond alternatives such as other gemstones, moissanite or cubic zirconia.